کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5413475 | 1506626 | 2008 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Excess molar volumes and excess viscosities for mixtures of N,N-dimethylformamide with methanol, ethanol and 2-propanol at different temperatures
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
Densities and viscosities for mixtures of N,N-dimethylformamide (DMF) with methanol, ethanol, and 2-propanol were measured as a function of mole fraction at (303.15, 308.15, 313.15, 318.15, 323.15) K and atmospheric pressure. From the measurements, excess molar volumes (VmE), excess viscosities (ηE), and Grunberg and Nissan interaction parameters (É) were calculated. The excess parameters were fitted to the Redlich-Kister equation. Excess molar volumes (VmE) were found to be negative throughout the whole range of composition for all the three systems. The excess viscosities and interaction parameters of the DMF + methanol system were found to be positive whereas the values were negative for the other systems over the entire concentration range.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Liquids - Volume 138, Issues 1â3, 15 February 2008, Pages 139-146
Journal: Journal of Molecular Liquids - Volume 138, Issues 1â3, 15 February 2008, Pages 139-146
نویسندگان
M.M.H. Bhuiyan, M.H. Uddin,